/Engine/Source/Runtime/Core/Public/Internationalization/StringTableRegistry.h
Internal function called by LOCTABLE_SETSTRING to set the entry denoted by the given key to the given source string, within the given string table (table must have been registered already)
void Internal_SetLocTableEntry ( const [FName](API\Runtime\Core\UObject\FName) InTableId, const [FString](API\Runtime\Core\Containers\FString) & InKey, const [FString](API\Runtime\Core\Containers\FString) & InSourceString )